77374374 has 64 divisors (see below), whose sum is σ = 193881600. Its totient is φ = 19998720.

The previous prime is 77374351. The next prime is 77374387. The reversal of 77374374 is 47347377.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172102 + ... + 172550.

It is an arithmetic number, because the mean of its divisors is an integer number (3029400).

Almost surely, 2^77374374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77374374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96940800).

77374374 is an abundant number, since it is smaller than the sum of its proper divisors (116507226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77374374 is a wasteful number, since it uses less digits than its factorization.

77374374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 345744, while the sum is 42.

The square root of 77374374 is about 8796.2704596892. The cubic root of 77374374 is about 426.1204556985.

The spelling of 77374374 in words is "seventy-seven million, three hundred seventy-four thousand, three hundred seventy-four".